Home / 86,944.16-130,416.24-45,381.44

Finding the Fourth Proportional to 86,944.16, 130,416.24 and 45,381.44

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Solution

The fourth proportional to 86,944.16, 130,416.24 and 45,381.44 is: 68,072.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,944.16 : 130,416.24 = 45,381.44 : x
  2. Step 2: Convert to fraction form
    86,944.16/130,416.24 = 45,381.44/x
  3. Step 3: Cross multiply
    86,944.16x = 130,416.24 × 45,381.44
  4. Step 4: Simplify right side
    86,944.16x = 5,918,476,770.59
  5. Step 5: Solve for x
    x = 5,918,476,770.59/86,944.16
  6. Step 6: Final answer
    x = 68,072.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.